Hey, Marcelo. Your title for this discussion is wonderful. Well played.

Sorry if we haven't been able to respond to you on this issue. We can't always respond to everyone, but I'll give it my best shot here as I have in other spots.

I think that JFarrow's Sign-up Quiz suggestion is a good one, but I know that this is a frustration for people who want to make it easier for legitimate people to sign up. The recent tools we released aren't going to help with GMail addresses, since you can't ban all GMail addresses. Unfortunately, I don't have a good answer for you. Some people have suggested a few things we could do:

Deny addresses with a certain number of dots in the email address, but as you can see here, this can lock out legitimate people as well.

Some people think we should have a database of blacklisted email addresses. However, this could be problematic because it would inevitably ban legitimate people.

Spam is a difficult issue, to be sure. I guess the best advice I can give is to use as many of these tools we've created as you can. And, turn on member moderation. I moderate this community and see spambots from time to time, but so far my vigilance has paid off. We've never really had spam in this community because we moderate membership.

I'm deleting about 7 new spammers per day. I also use captcha and email confirmation. The new tool for ban IP address and domains can't be applied, they are all @gmail and IP addresses from many places.

It's an interesting idea to use the quiz but I din't want to add another question to new users. I understand the difficulties Eric explained, but before I define a new question with a quiz, I'd like to know if development is researching any method to reduce spammers registering, for example a tool similar to captcha but that works.

We are not working on our own version of CAPTCHA. I think a quiz can actually be a great way to promote exclusivity. But, I can understand that you want to keep the sign-up problem as light as possible.